baber/WOPTO huggingface dataset:
Patent GB-836540-A (GB)
Title: A method and an apparatus for making annular grooves in cylindrical blanks
IPC: B21H7/18
Filed: 1958-10-20
Abstract: 836,540. Rolling annular grooves. LESJOFORS A.B. Oct. 20, 1958 [July 11, 1958], No. 33360/58. Class 83 (4). A method of making annular grooves in cylindrical blanks comprises rolling each blank between a roll and a stationary abutment, whose respective shape and supporting surface correspond to the desired cross-sectional shape of the groove, and progressively decreasing the distance between the roll and the abutment during the rolling operation. Two shafts 11 are mounted for rotation in fixed bearings 10 and are rigidly interconnected by a shaft 12. Each shaft 11 carries a keyed sleeve 15 and a discshaped roll 13 of tool steel secured to the sleeve by screws 14. The abutment 17 has a rib 18 of tool steel opposite the periphery 16 of the roll at a distance from the roll which progressively decreases from the upper end 19 of the rib. A pair of circular discs 21 are rigidly interconnected by a tube 22 and are mounted on bushings 23 which are freely rotatable on the shaft 12, each disc having four equally-spaced and similarly disposed notches 24 to receive and permit rotation of the blanks. The depth of the notches is such that the blank is inside the outer periphery of the discs and spaced from the bottom of the notch when it rests on the rolls 13 and each notch is widened along the periphery of the disc by a shallow recess 25. The annealed blanks are fed to the discs by a pair of guide members 26 of channel cross-section placed in a suitable frame adjacent the periphery of the discs. The discs rotate with the rolls due to friction between the shaft 12 and the bushings 23 until the disc feeds the blank into the mouth of the rolling passage whereupon the grooves are rolled in the blank which leaves the discs in finished condition at the lower ends 20 of the ribs. Specification 706,056 is referred to.
Patent GB-298806-A (GB)
Title: Improvements in water tube boilers
IPC: F22B21/04
Filed: 1927-12-12
Abstract: 298,806. Noble, E. E. Dec. 12, 1927. Drawings to Specification. Water-tube boilers.-In a two drum Stirling or like boiler, the tubes of the front bank are so bent that their upper parts are inclined at an angle of less than 44‹ to the horizontal and their lower parts are inclined at an angle of less than 44‹ to the vertical.
Patent GB-1433606-A (GB)
Title: Treatment of aqueous effluents containing sulphurous impurities
IPC: C02F1/72
Filed: 1973-07-13
Abstract: 1433606 Treating effluents containing sulphur compounds L'AIR LIQUIDE SOC ANON POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 13 July 1973 [21 July 1972] 33630/73 Heading C1C Oxidation of dissolved mineral sulphur-containing impurities (e.g. sulphides, sulphites, thiosulphates, hydrosulphites of Na, K, NH 4 ) in industrial aqueous effluents (e.g. from paper mills, tanneries and petrochemical installations) is effected by treatment with one or more peroxy compounds selected from hydrogen peroxide, perborates (e.g. Na), percarbonates (e.g. Na), monopersulphuric acid, monopersulphates (e.g. K), dipersulphates (e.g. Na, K, NH 4 ), performic, peracetic, monoper- and diperphthalic and -isophthalic acids, and salts of said organic peracids. Hydrogen peroxide may be generated in situ from per-salts or mineral or organic perhydrates. The end-point of the treatment is determined by, or the treatment is controlled in response to, the electrochemical response of an electrode pair consisting of an active electrode (e.g. of Ag which becomes coated with Ag 2 S) and a reference electrode, e.g. calomel. The pH may be 2-12 and adjusted by addition of, e.g. NaOH. The mole ratio of peroxy compound(s) to sulphur compound(s) calcd. as S<SP>2-</SP> may be 1-8. Release of hydrogen sulphide and, in many cases, precipitation of sulphur, are avoided.
Patent GB-447342-A (GB)
Title: Improvements in or relating to testing devices for leakage current coils
IPC: H01H83/04
Filed: 1934-11-23
Abstract: 447,342. Protective cut-out arrangements. SADLER, A., 65, Temple Row, Birmingham.-(Schiele & Bruchsaler-Industriewerke Akt.-Ges.; Baden-Baden, Germany) Nov. 23, 1934, No. 33654. [Class 38 (v)] A device for testing the trip coil and associated earth circuit of an automatic switch for cutting out electrical apparatus when the metallic housing thereof attains a dangerous potential, comprises an arrangement whereby, on continued uniform movement of an operating member in one direction, the trip coil 8 and earth circuit are first disconnected from the housing and are then connected to two different poles or phases 2, 3 of the supply in turn, through non-inductive resistances 9, 10 which are housed in apertures 11A, 12A in the insulating chambers of the switch contacts. A movable blade 1 is carried on a pin and urged by spring 4 against contacts 5A, 5B fixed on the housing 6 of an insulating pressbutton 7, thereby normally making a circuit from the housing of the apparatus, through housing 6, pins 5A, 5B, the spring 4 and coil 8 to earth. When the button 7 is depressed, the above circuit is broken at the pins 5A, 5B and by further depression the blade 1 engages resistance 9 and so connects the pole 3 through the spring 4 to the coil 8 and earth. Further depression of 7 causes the part 1A to engage the resistance 10 and lever against it, so that the blade disengages 9. At the same time the pole 2 is connected to earth through the resistance 10 and trip coil.
Patent GB-729416-A (GB)
Title: Improvements in or relating to tractor-mounted platforms
Inventor: SANDOR BELA THOMAS
IPC: A01D87/08
Filed: 1953-12-04
Abstract: 729,416. Tractor power take off mechanisms. SCOTTISH MECHANICAL LIGHT INDUSTRIES, Ltd. Dec. 4, 1953, No. 33748/53. Class 79(2). [Also in Group XXX] A platform 30, 31 (see Group XXX) secured to the power operated draft mechanism at the back of a tractor supports one or more countershafts, or a gear box driven by the usual power take off shaft on the tractor. The lifting mechanism is provided with a telescopic bar 35, 36 which can be locked by a pin 38 in a number of positions of extension to relieve the hydraulic mechanism of the weight of the load, and which can also limit the movement of the platform by means of a pin and slot connection between the parts 35, 36. Modified bars are illustrated in Figs. 9 and 10 (not shown). The platform is provided with a number of spaced pivot pins of different sizes (not shown) to facilitate attachment to the draft links of different makes of tractors.
Patent GB-1416559-A (GB)
Title: Seed drills
IPC: A01C7/04
Filed: 1973-07-16
Abstract: 1416559 Seed sowers STANHAY (ASHFORD) Ltd 16 July 1973 33765/73 Heading AID  Seed spacing apparatus comprises a plurality of units (Fig. 1) each having a hopper 7 from which seed is fed to a seed chamber where it is distributed by a conveyor belt and a seed-rejector wheel. Each unit has its own framework 1 with roller-type wheels 2, 3 and the conveyor belts and seed-rejector wheels of several or all the units are driven by one ground-engaging wheel 15 preferably via a speed-change means using stepped pulleys. To obtain a close spacing of the drilling rows the units may be connected in staggered tandem formation. The rear wheels 3 may have a steel or rubber tyre or be of an openmesh type and it is fitted with a scraper 4. The coulter 6 ploughs out a flat furrow with one or more grooves to receive the seeds.
Patent GB-1204400-A (GB)
Title: Improvements in and relating to reservoir pens
Inventor: CRANE JAMES WILLIAM ALMA
IPC: B43K8/02
Filed: 1968-07-16
Abstract: 1,204,400. Moulding plastic substances. SCRIPTO PENS Ltd. 21 May, 1969 [16 July, 1968], No. 33771/68. Heading B5A. [Also in Division A4] A fibre nib and nib-holder are made by placing the fibre-nib in a mould for the holder and moulding the holder about the nib. During the moulding process some of the holder material, e.g. A.B.S. enters the interstices between the fibres on the surface of the nib and on setting makes a strong mechanical bond between the nib and the holder. The fibre-nib may be of bulked, twisted and kinked polyester filaments bonded with an epoxy resin.
Patent GB-813122-A (GB)
Title: Improvements in or relating to solid material withdrawing arrangements for shaft furnaces
IPC: F27B1/20
Filed: 1955-11-25
Abstract: 813,122. Discharging shaft furnaces. SOMOGYI, F. P. Nov. 12, 1956 [Nov. 25, 1955], No. 33831/55. Class 51 (2). Apparatus for discharging loose material from a shaft furnace 1 comprises a crushing grate 5 of known construction mounted on a driven shaft 4 above a conical shell 6 formed with ploughs 7 and air ports 6a, and an annular plate 8 through which discharged material passes to a shoot 3. The size of the aperture in the plate 8 is such that when the discharge apparatus is stationary the material rests on said plate without falling through.
Patent GB-646173-A (GB)
Title: Improvements in fluid friction brakes
IPC: F16D57/02
Filed: 1947-12-24
Abstract: 646,173. Fluid-friction brakes. GASSOT, R. J. L. Dec. 24, 1947, No. 34113. Convention date, Nov. 16, 1945. [Class 103 (i)] A fluid-friction brake comprises a drum 3, rotatable with a vehicle wheel or part of a machine to be braked, which encloses a core member 2 held stationary on a fixed axle so that a substantially annular chamber 14 is provided between them. The core member 2 has radial guide ways 4, 5, 6, 7 having therein vane-like elements 8, 9, 10, 11 which, when the brake is to be applied, may be projected out across the chamber 14 by fluid pressure from a master cylinderacting against their inner ends 81, 91 which are in the form of plungers. The chamber 14 is filled with a fluid, which but for the elements 8, 9, 10 and 11, would be carried round by an inwardly projecting flange 15, integral with the drum 3, and on which the reaction of the fluid produces the braking torque. The flange 15 carries camlike slopes 16-16<SP>1</SP>, 18-18<SP>1</SP> by which it presses back the vanes 8, 9, 10, 11 so that it may pass them. The flange 15 may extend over an angle of 90 degrees or more as indicated by the chain-dotted line 15<SP>1</SP> in Fig. 1.
Patent GB-899285-A (GB)
Title: Improvements in or relating to apparatus for measuring or indicating the roughnesses or undulations of a surface
Inventor: REASON RICHARD EDMUND
IPC: G01B7/34
Filed: 1957-11-01
Abstract: 899,285. Electrical measuring systems. TAYLOR, TAYLOR & HOBSON Ltd. Oct. 28, 1958 [Nov. 1, 1957], No.34164/57. Class 40 (1). [Also in Group XIX] Surface testing apparatus -has means for retracting the stylus through a slot in a workengaging member. Fig. 1 shows a surface testing apparatus of the type described in Specification 892,972 but in which the stylus B and the skid J are retractable beneath the surface of the slotted worksupport A<SP>2</SP> by means of a cam K<SP>6</SP> driven by the electric motor K. Alternatively the stylus B may be retracted electromagnetically with the aid of a cam-operated switch. In another arrangement, two cams are geared to the main driving-shaft so that the skid J and the stylus B make a number of traverses across the surface of the workpiece before they are retracted by one of the cams. In this arrangement the piezoelectric crystal or other generating transducer coupled to the stylus B is connected to a heavily damped indicating instrument to indicate average roughness. The Specification also describes detector mounting arrangements, releasable detector couplings and traverse control arrangements substantially the same as those described in Specification 892,529.
Patent GB-1428722-A (GB)
Title: Osmosis separation process
IPC: B01D65/08
Filed: 1973-07-19
Abstract: 1428722 Nitriles E I DU PONT DE NEMOURS & CO 19 July 1973 [20 July 1972] 34399/73 Heading C2C [Also in Divisions B1 and B5] In a reverse osmosis process a solution containing (a) a compound or complex of Ni, Pd, Pt, Co, Rh, Ru or B and (b) at least one hydrocarbon derivative having at least one nitrile group and containing up to 12 C atoms, is contacted with an asymmetric selectively permeable membrane consisting of an aromatic polymer having recurring groups in the polymer chain, to separate at least part of the component (a) from the solution. In Ex. 16 dicyanobutene is hydrogenated to adiponitrile using [(C 6 H 5 ) 3 P] RhCl as catalyst. In Ex. 17 a starting mixture of acrylonitrile, benzonitrile, sodium salicylate and RuCl 3 . 3H 2 O undergoes a reaction to produce a mixture of acrylonitrile, propionitrile, benzonitrile, mucononitrile, dicyanobutene and adiponitrile. In Ex. 18 a starting mixture of acrylonitrile, hexamethylphosphoramide and RuCl 3 .3H 2 O undergoes a reaction to produce a mixture of acrylonitrile, propionitrile, #-chloropropionitrile, dicyanobutenes and adiponitrile. In Exs. 16-18 the catalyst is separated from the reaction product using a polyimide membrane.
Patent GB-466287-A (GB)
Title: Improved treatment of starch and starch-containing substances
IPC: C08B30/12
Filed: 1935-12-13
Abstract: An adhesive or size, soluble in hot water but insoluble in cold water, is obtained by heating starch with chloral hydrate to a temperature not higher than 95 DEG  C.  The Provisional Specification refers also to the use of organic or inorganic neutral, non-corrosive hydrates in general.
Patent GB-1399140-A (GB)
Title: Analogue function generator
IPC: G01P5/175
Filed: 1972-07-25
Abstract: 1399140 Analogue function generators CROUZET 25 July 1972 [29 July 1971] 34610/72 Heading G4G An analogue function generator comprises two amplifiers A 1 , A 2  which are fed with the input signal and respective reference potentials. The outputs of the amplifiers are of different polarities and are connected to respective ends of a potentiometer P, which can be non- linear, whose tap is adjusted by a self-balancing servo-system A 4 , M, G so as to seek a point of zero potential along the potentiometer. The displacement of the tap along the potentiometer is then representative of the desired output. With a linear potentiometer the function will be of the form y=(ax+b)/(cx+d).
Patent GB-859288-A (GB)
Title: Improvements in or relating to a process for dyeing and coloring lacquers, printing inks and plastics and for spin-dyeing artificial fibres
IPC: C09D101/18
Filed: 1958-10-29
Abstract: In the colouring of nitrocellulose lacquers, the spin dyeing of regenerated cellulose, cellulose ether, cellulose ester and synthetic polymer fibres and in the colouring of plastics, use is made of dyestuffs having the general formulae: <FORM:0859288/IV(a)/1> <FORM:0859288/IV(a)/2> wherein R represents the radical of an ortho-or peri-arylene, R1 represents hydrogen, halogen, alkyl or alkoxy and R2 and R3 each represent hydrogen or halogen.  In an example, a nitrocellulose lacquer is coloured with 2% by weight of a reddish violet pigment dyestuff obtained by reacting tetrachloro-perylene-3, 4, 9, 10-tetracarboxylic anhydride with 1, 2-diamino-4-methylbenze.  In another example, 3 parts parts of violet pigment dyestuff, obtained by reacting perylene-3, 4, 9, 10-tetracarboxylic anhydride with 1, 2-diaminobenzene, are mixed with 500 parts of nylon 66 and the mixture is melt spun in a nitrogen atmosphere at about 285 DEG C.  In a third example, 1 part of a violet pigment dyestuff, prepared by reating perylene-3, 4, 9, 10-tetracarboxylic anhydride with 1, 2-diamino-4-methylbenzene, is compounded in a roller mill with 4 parts of water and a small proportion of sodium dinaphthylmethane dissulphonate to form a paste which is mixed with 1170 parts of a viscose containing 8,5% of alpha cellulose, and the mixture is wet-spun to form violet regenerated cellulose filaments.  In an example of the colouring of a polyvinyl chloride composition 0,1 part of a pigment dyestuff, produced by reacting perylene-3, 4, 9, 10-tetracarboxylic anhydride with 1, 2-diaminobenzene, is pasted with 1 part of dioctyl phthalate, the paste is incorporated in a mixture of 60 parts of polyvinyl chloride and 40 parts of dioctylphthalate, and the mixture is gelatinized on a roller mill at 140-150 DEG C. and pressed between polished plates at 140 DEG C. to form a violet coloured sheet.  In other examples the dyestuffs are incorporated in polystyrene and polyethylene moulding powders respectively.  When used with polyvinyl chloride the dyestuff preferably contains at least two halogen atoms.  Several dyestuffs suitable for use with polyvinyl chloride are tabulated, including bromo- and chloro-substituted compounds obtained by using halogensubstituted starting material or by halogenating the coupled dye.
Patent GB-1321425-A (GB)
Title: Methods of producing monocrystalline bodies of semiconductor  material
IPC: C30B13/20
Filed: 1970-07-17
Abstract: 1321425 Zone melting PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 17 July 1970 [21 July 1969] 34790/70 Heading B1S A monocrystalline rod is made by zonemelting a rod of semi-conductor material combined at one end to a seed crystal. The zonemelting is effected by high-frequency induction heating and the diameter of the rod is controlled by a short-circuit ring associated with the coil. As shown, the desired rod is made in a hermetically closed tube 18, having a transparent wall, by being a seed crystal 12, in a holder 17 into contact with rod 11, heating the rod with a water-cooled coil 13 encircling 18, and controlling the diameter of the rod by a hollow conductive short-circuit water-cooled ring 14 also encircling 18. The control is effected by varying the distance d between the ring 14 and the coil 13, by displacing arm 23 vertically by a spindle 19, to vary the thickness of the molten zone.
Patent GB-180358-A (GB)
Title: Improvements in spring seating surfaces
IPC: B60N2/70
Filed: 1920-12-10
Abstract: 180,358. Marshall, J. E. L. Dec. 10, 1920. Spring surfaces.-A woven wire seat is formed with a fiat surface B at the rear and with a roll C at the front, the free edge A' being secured to the main portion at B<1> by ties G, and the roll being further supported by longer springs D or by subsidiary springs L. In the modification shown in Fig. 2, the roll C is formed from a backwardly bent continuation of the surface B, or by attaching a separate piece of woven wire fabric at A<1> and Bl.
Patent GB-778313-A (GB)
Title: Improvements in or relating to loom temples
Inventor: COXON WILLIAM REGINALD
IPC: D03J1/22
Filed: 1954-12-02
Abstract: 778,313. Loom temples. LOGAN MUCKELT & CO., Ltd. Feb. 24, 1956 [Dec. 2. 19541. No. 34883/54. Class 142 (2). The ends 10<SP>x</SP> of a support bar 10 for the housing 13, 14, of a temple are cranked downwardly at 9 to bring the nip of the temple into the plane of the fabric. The housing is adjustably secured to the end 10<SP>x</SP> by a screw 16 engaging one of a number of holes 12. Alternatively, the lower part 14 may have undercut lugs at each corner engaging the sides and bottom of the bar and a grub screw securing the housing. The bar 10 is resiliently mounted at each end of its straight central portion by a bracket 27 secured to the bar and having a forked end 29 that slides on a flange 22a of an angle bar 21. A spring 30 keeps the temples in their rear position. The bar 21 is pivoted at 22 in a bracket 17 adjustably bolted to the breast beam and is locked in the required position by a bolt 23.
Patent GB-1155633-A (GB)
Title: Improvements in or relating to Compressed Pulse Communication Systems
Inventor: GRISDALE GEORGE LAMBERT
IPC: H04B14/02
Filed: 1967-07-28
Abstract: 1,155,633. Selective signalling. MARCONI CO. Ltd. 5 May, 1968 [28 July, 1967], No. 34934/67. Heading G4H. [Also in Division H4] Signals are transmitted by means of a sequence of pulses in which the pulses consist of a frequency which varies at a predetermined rate from an initial frequency and the initial frequency is varied in dependence upon the intelligence signals to be transmitted. The input signal may be in digital or analogue form. (See Division H4). Digital input, Fig. 1.-A binary signal from a source S is supplied via a regenerator ALR to frequency shift an oscillator FSO whose output synchronizes a sawtooth oscillator SWG which frequency-modulates an oscillator FMO. The outputs of oscillators FSO and FMO are mixed at M and the resultant pulses of the type specified, are selected by a filter BPF for transmission. At the receiver, Fig. 7 (not shown), the received pulses are applied to a known dispersive line in which the delay is dependent upon frequency in such manner that the different frequencies in a pulse arrive at the output simultaneously to provide narrow pulses, Fig. 9 (not shown), which occurs at a time dependent upon the initial frequency of the corresponding frequency sweep. The output of the dispersive line is supplied to an amplitude detector, e.g. a full wave rectifier and the resulting position modulated pulses are demodulated by known means. In a modified transmitter, Fig. 17 (not shown) the output of the pulse regenerator (ALR) controls a sawtooth generator and the voltages from the pulse regenerator and the sawtooth generator are added and used to frequency modulate an oscillator.
Patent GB-1479283-A (GB)
Title: Inhaler for powdered medicament
IPC: A61M15/00
Filed: 1973-07-23
Abstract: 1479283 Inhaler for powdered medicament BESPAK INDUSTRIES Ltd 22 July 1974 [23 July 1973[ 35003/73 Heading A5T An inhaler for powdered medicament in capsulated form comprises a housing 10 having a chamber 15 for a capsule which is punctured at one end by a needle 22 operated by a slide 29 external of the housing and at the other end by a needle 21 held within a cover 23 for a mouthpiece 17, whereby in use after puncturing the cover is removed and a supply of pressurized air made available by compressing bellows 12, the air being retained by a valve 20 until a user inhales through the mouthpiece and causes air to enter an aperture 33 and move a vane 30 against its spring 32 to open valve 20 and allow the pressurised air to be expelled through the mouthpiece taking with it the medicament in the capsule. The bellows is retained within a cylindrical recess 11 formed with an air inlet valve 13, the vane is pivoted at 31 and the needle 22 biased to its withdrawn position by a spring 26.
Patent GB-1041394-A (GB)
Title: Filter pads for sanitary masks and sanitary masks incorporating such pads
Inventor: GERRISH STANLEY THOMAS
IPC: A62B23/00
Filed: 1963-09-05
Abstract: 1,041,394. Respiratory masks. MARTINDALE ELECTRIC CO. Ltd. Sept. 4,1964 [Sept. 5, 1963;July 24, 1964], Nos. 35147/63 and 29781/64. Heading A5T. [Also in Division B1] A filter pad, suitable for a face mask comprising a plate having a nose recess, mouth aperture and head strap, comprises a layer 5 of cotton wool, medical gauze or resinated merino wool, enclosed between two sheets of flexible polyurethane foam 6, 7 which are welded or adhered together round the edge of the pad (Fig. 8). In manufacture sheet 7 and layer 5 are assembled in a frame and held by pins, and sheet 6 is then welded to sheet 7 by a knife which trims the sheets and welds them at the same time. The knife may be heated electrically or the sheets may weld by pressure alone. Alternatively, cutting and welding may be separate steps.